activity

Activity

1. An act that requires use of resources or time. In Program Evaluation and Review Technique (PERT), an activity is represented by an arrow on a PERT chart.

2. In investing, the amount of a security's relative trading volume; that is, the amount of money flowing into and out of a security in trading. A high amount of activity means that many shares of the security are being bought and sold at a high rate, while a low level of activity indicates the opposite.

Roy is engaged in a redecorating frenzy this week, classic displacement activity as he can't stop brooding on what Hayley has said she wants to do before her terminal illness prevents her making her own decisions.

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